3.0's take forever to warm up? - Page 2 - Ranger-Forums - The Ultimate Ford Ranger Resource

2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

LinkBack Thread Tools Search this Thread
Old 12-25-2006
Jeremy102579's Avatar
Thread Starter
Join Date: Jun 2006
Location: North Tonawanda, NY
Posts: 431
you mean that big fan behind the radiator, correct?

how much and how hard to install?
Reply With Quote
Old 12-26-2006
Unregistered User
Posts: n/a
Originally Posted by quest51210
remote start ftw!

how is this going to cure his problem?

green card?
Reply With Quote
Old 12-31-2006
franger's Avatar
Join Date: Dec 2006
Location: litchfield,ct
Posts: 271
the average time you should let your engine drive before you shut it off is 7 miles, this allows everything to fully charge, and enough time for your motor to reach its maximum safe running temperature.

i go to school for automotive tech, and this is what we have learned from out shop instructors.

Reply With Quote
Old 01-03-2007
Fredness's Avatar
Join Date: Jul 2006
Location: Sasquatch Country!
Posts: 175
...I would hope they teach you more as you go, the current EFI strategies are based on sensor data and time, not mileage.

Remote start doesn't do anyting for your vehicle, it is a "convenience" feature that wastes gas. Your speed in the driveway with no one behind the wheel is 0 and the engine is running, therefore your MPG is 0. The owners manual says to drive the vehicle immediatley after starting to warm it up and increase economy.

The 3.0L engine is equipped with a "bypass loop" in the cooling system to reduce circulation noise as reported in the 1994 (ish) TSB. This is a warm loop that by-passes the thermostat to circulate coolant 100% of the time through a 5/8" hose starting at the lower (cold) hose and going to the intake manifold, before the T-Stat.

The water pump pulls cooled water from the lower radiator hose and forces it in the front of the block, from here it goes to the rear of the block (the vast majority of it) enters the heads at the rear and moves forward to the intake manifolds water riser, to the T-Stat housing and NORMALLY to the hot side of the radiator (top) through the upper hose. The bypass "jumpers" the hot side to the cold. The mechanical fan turns all the time, bring colder outside air over the radiator. Since cold water sinks, this water is now picked up at the input to the bypass and run through the engine.

With an electric fan, no additional cooling is added at idle, so the water is continuously warming. I also deleted the hot water bypass and used a full flow t-stat with a small hole drilled in it instead. Worked great, warmed up very quickly, removed 3 ft of useless hose, 4 clamps and made the front of the engine look much cleaner. Hoses changes are much easier too.

Been there, did that, recorded the results.


Last edited by Fredness; 01-03-2007 at 02:38 PM.
Reply With Quote
Old 01-25-2007
Virgil's Avatar
Join Date: Jan 2007
Location: Tucson, AZ
Posts: 19
an Efan would make a big difference, yes the cooling effect of the air across the motor itself is only around 30% but that is still time and if you think about it does your thermostat just slam open and heats up the radiator water instantly? no so the motor basically starts sipping the cold water from the radiator and warming it up too so cold air drawing through it still is cooling the engine, now I have a question, how the hell do you know when your fan clutch disengages? they do not make any sound that I have ever heard, oh and they don't stop spinning they just allow for slippage when the engine is cold so if your fan clutch is "disengaging" after a min of driving then it is backwards
Reply With Quote
Old 01-25-2007
Virgil's Avatar
Join Date: Jan 2007
Location: Tucson, AZ
Posts: 19
damn sorry guys, still new to the forum thing and just read the first page and thought that was all but did not notice the second page link and someone already posted the answer on the second page
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
how long does everybodies ranger take to warm up bgjeff23b DOHC - 2.3L Duratec / Mazda L Engines 2 05-06-2012 05:44 PM
site taking forever to load/partial load morris Ranger-Forums Office 59 09-06-2011 12:59 AM
my air conditioning takes forever to get cold morris General Technical & Electrical 21 06-26-2009 04:00 PM
USer CP - is it just down or is it gone forever? JoshK Ranger-Forums Office 7 02-18-2008 08:27 PM
to take it or not to take it??????????? blue_bandit General Ford Ranger Discussion 26 02-16-2006 12:31 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -6. The time now is 07:53 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.